Empty Theory 4 - Well Definitely Meet Again
[Ootani Mikoto] Seishun Kanjouron - youth emotion theory [R18 Ban] 1
Innovate Heart Another √chaos
(COMIC1☆6) [Crazy9 (Ichitaka)] Zessica no Koufukuron | Zessica's Theory of Happiness (Aquarion Evol) [English] [biribiri + Doujin-Moe.us]
A Kid’s Theory
Orcs and juvenile ω love evolution theory
[Mira] Kodomo no Riron | A Kid’s Theory (School Girls Love Selection) [English] {Hennojin}
[Circle KGB] Mahou Shoujo Lyrical Vita (Mahou Shoujo Lyrical Nanoha)
[Shoryutei Enraku] Seishin Kaihouron | The theory of releasing your real self (Nozoite wa Ikenai 7 - Do Not Peep! 7) [English] [Quick and easy translations]
Happy theory
(Japariket) [Ame nochi Yuki (Ameto Yuki)] Mofu Mofu Friends (Kemono Friends)
Izayoi Sakuya no Ikinuki Chouri
My Office Ch.1-33 (English) (Ongoing)
(C93) [TUKIBUTO (Hyouju Issei)] Kuse ni Naru Fukei (Fate/Grand Order)
[Ryuutai Urinal (Ryuutai Niku)] Mokomoko xx Diffusion (Tropical-Rouge! PreCure)
[Hidemaru] Midara Shimai Asobi
[U.R.C (Momoya Show-Neko)] U.R.C Maniax 4 (Dynasty Warriors, Sakura Taisen)
(C78) [Kinokonomi (kino, konomi)] Kinokothical Theory (Various)
(C92) [Koniro Drops (Morishima Kon)] Rironjou 3-patsu made nara Taeraremasu. - In Theory You Can Tolerate up to Three Shots (Splatoon)
(C78) [ANARCOMIX (Yamamoto Johanne)] Tsugi Seirei Daisanshou 「Seiteki Shukujo」
Shinkai Dennou Rakudo E.RA.BB
Ore wa Otoko daa Bangaihen
Roji Ura Kairou
Tenko-chan wants to attack but loses
Futanari Kurabe
Karasu no Negura
Imouto ni Chikau Hi
Futaba841 (Mitsuya Yoguru) - The Love and Pleasure Theory for Boys [ENG]
Innovate Heart
(SC31) [USAUSA (Akira)] Meer de cosplay! (Gundam SEED DESTINY)
[Katsura Airi] "Otto no Buka ni Ikasarechau..." Aragaezu Kanjite Shimau Furinzuma [Full Color Ban] 2
Soutaisei Virgin Theory
Empty Theory 3 - Cousin
[Runa] Kiseki no Hana wa Watashi no Naka ni | The Miracle Flower Is Inside Me (Harami Otome wa Kaikan Gurui) [English] [Kuraudo] [Digital]
Yowasete Hamakaze
[Kuroiwa Menou] Hitozuma Club Bijo to Yajuu-tachi (COMIC HOTMILK 2020-05) [English] {The Ancient Hentai Theory} [Digital]
(C85) [CotesDeNoix (Cru)] Innovate Heart (Hyperdimension Neptunia)
Mokomoko xx Diffusion
Empty Theory 1 - After Pleasure
[Okonogi Happa] Tensei shita Akuyaku Reijou wa H shinai to Shinu Unmei ~Tekikoku Ou to Rouraku Kekkon~ | 转生成为恶役大小姐,迎接不H就会死的命运~与敌国国王的笼络联姻~ 1-2 [Chinese] [莉赛特汉化组]
Toumei ni Kogarete
人妻肉人形まゆら
[Warabimochi] Hero no yuuutsu Sei shotahero VS erosuraimu
i-copy 201912
She; Her; Her; Hers
[Mokusei Zaijuu (Mokusei Zaijuu)] Koushuu Benjo Kotoura-san (Kotoura-san)
Empty Theory 6 - Hearts Scheme
[Kamirenjaku Sanpei] SCHOOL LOVE TEACHER #3 (COMIC RiN 2010-03) [English] [Risette]
Dennou Succubus to Sex Shite mo Eikyuu ni Derarenai Heya Nightmare
Raphtalia of the mating season
Akogare no Senpai to Makura Idol to Elf-tachi no bōnenkai!
(C59) [Abbey Load (RYO)] Gachinko (Love Hina) [English] [HMP]
(C66) [SUBSONIC FACTOR (Ria Tajima)] The steady-state theory (Fullmetal Alchemist)
Seiki Kuubo no Kantsuu Jijou Kai Yon | Aircraft Carrier Adultery - Revision 4
[Theory of HEAVEN (CROW)] Onikuya Ken-chan (Anyamaru Tantei Kiruminzoo) [Digital]